Adjustment device and drinking straw component

ABSTRACT

The present application discloses an adjustment device for a drinking straw and a drinking straw component. The structure of the adjustment device includes a first elbow and a second elbow, wherein one of the first elbow and the second elbow is partially insertable into the other of the first elbow and the second elbow; a slot is provided on the wall of the first elbow and extends along a length of the first elbow; a protrusion is provided at an end of the second elbow close to the first elbow; and the protrusion is slidable in the slot of the first elbow along its length, so that the first elbow and the second elbow can be slid against each other. The present application can adjust the sipping angle of the straw and pierce through a cover of a wrapped drink purposed for inserting the corresponding straw.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202010889417.3 with a filing date of Aug. 20, 2020. The content of the aforementioned application, including any intervening amendments thereto, are incorporated herein by reference.

TECHNICAL FIELD

The present application relates to the field of straws, and more particularly to an adjustment device for adjusting the sipping angle of a straw and a drinking straw component.

BACKGROUND

In order to drink wrapped drinks conveniently, people usually use a straw to sip wrapped drinks.

Most of the existing straws are disposed after one-time usage and so they are not environmental friendly. For some reusable straws, since they are usually completely sealed and not easy to clean, they are designed to be resealable. Although such a straw is easy to clean, but it is usually in a straight tube shape, and its sipping angle cannot be adjusted, which is inconvenient for users to drink.

SUMMARY

The present application provides an adjustment device and a drinking straw component to solve or alleviate one or more technical problems in the prior art.

According to one aspect of the present application, an adjustment device for a drinking straw is provided, comprising: a first elbow and a second elbow, wherein one of the first elbow and the second elbow is partially insertable into the other of the first elbow and the second elbow; a slot is provided on a wall of the first elbow and extends along a length of the first elbow; a protrusion of the second elbow is provided at an end connected to the first elbow; and the protrusion is slidable in the slot of the first elbow along its length, so that the first elbow and the second elbow can be slid against each other.

In some embodiments, a first opening is formed on the wall of the first elbow, and penetrates both ends of the first elbow along the length of the first elbow; and a second opening is formed on the wall of the second elbow, and penetrates both ends of the second elbow along the length of the second elbow.

In some embodiments, the first opening is aligned with the second opening.

In some embodiments, an inclined opening is provided at one end of the first elbow away from the second elbow.

In some embodiments, a piercing part is provided at an end of the first elbow away from the second elbow, and the piercing part is configured to pierce through a cover of a wrapped drink.

In some embodiments, the slot penetrates from an inner wall of the first elbow to an outer wall opposite to the inner wall.

In some embodiments, the protrusion is provided on the outer wall of the second elbow, and in the portion where the second elbow is inserted into the first elbow, the outer wall of the second elbow is attached to or close to the inner wall of the first elbow.

In some embodiments, the protrusion is provided on the inner wall of the second elbow, and in the portion where the first elbow is inserted into the second elbow, the inner wall of the second elbow is attached to or close to the outer wall of the first elbow.

In some embodiments, the slot is located at the bending top of the first elbow, and the protrusion is located at the bending top of the second elbow.

In some embodiments, both the first elbow and the second elbow are made of stainless steel or plastic.

According to another aspect of the present application, a drinking straw component is provided, comprising a straw and an adjustment device claimed in any one of embodiments of this application; wherein one end of the straw is insertable into the adjustment device, the inner wall of the adjustment device is attached to the outer wall of the straw, and the second elbow and the first elbow of the adjustment device are slidable against each other to adjust the end of the straw to form different sipping angle.

In some embodiments, the straw can be unfolded into a strip, a first coupling portion and a second coupling portion are provided respectively on the two opposite sides of the unfolded straw and both extend along the length of the straw, and when the first coupling portion and the second coupling portion are coupled with each other correspondingly, the two opposite sides of the straw are tightly combined to construct the straw from the unfolded long strip into a tube.

In some embodiments, the first coupling portion is a buckle groove, and the second coupling portion is a buckle block which is shaped to couple with the buckle groove of the first coupling portion.

In some embodiments, the buckle groove and the buckle block are hook-shaped.

In some embodiments, the straw is made of food-grade silicone, and the composition of the silicone comprises silver-ion elastomers and antistatic silicone elastomers.

In the above technical solution, one end of a straw can be inserted into an adjustment device to adjust the sipping angle of the straw. The straw can be unfolded into a strip, which is convenient for cleaning the inner and outer wall of the straw, and can be resealable. So the straw can be reused.

It should be understood that the content described in this section is neither intended to identify the key or important features of the embodiments of the present application, nor is intended to limit the scope of the present application. Other features of the present application will be easily understood by the following description.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are used to better understand the present solution and do not constitute a limitation to the present application. Wherein:

FIG. 1A and FIG. 1B are physical schematic diagrams of an adjustment device according to an embodiment of the present application;

FIG. 2 is a front view of an adjustment device according to an embodiment of the present application;

FIG. 3 is a cutaway view of an adjustment device according to an embodiment of the present application;

FIG. 4 is a front view of a second elbow according to an embodiment of the present application;

FIG. 5 is a cutaway view of a second elbow along A-A direction in FIG. 4 according to an embodiment of the present application;

FIG. 6 is a top view of a second elbow viewing from a second opening according to an embodiment of the present application;

FIG. 7 is a front view of a first elbow according to an embodiment of the present application;

FIG. 8 is a cutaway view of a first elbow along A-A direction in FIG. 7 according to an embodiment of the present application;

FIG. 9 is a top view of a first elbow viewing from a first opening according to an embodiment of the present application;

FIG. 10 is a stereogram view of a straw unfolded into a strip according to an embodiment of the present application;

FIG. 11 is a cross-section view of a straw unfolded into a strip according to an embodiment of the present application;

FIG. 12 is a schematic diagram of the change of the sipping angle of a straw according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a box packing according to an embodiment of the present application;

FIG. 14A, FIG. 14B, FIG. 14C, and FIG. 14D are schematic diagrams about how a straw is inserted into a wrapped drinks with an adjustment device according to an embodiment of the application;

FIG. 15A, FIG. 15B, and FIG. 15C are schematic diagrams of a straw according to an embodiment of the present application.

REFERENCE NUMBERS

-   -   100—adjustment device;     -   110—first elbow; 111—slot; 112—first opening; 113—inclined         opening; 114—piercing part; 115—inner wall; 116—outer wall;     -   120—second elbow; 121—protrusion; 122—second opening; 123—inner         wall;     -   124—outer wall;     -   200—straw; 220—first end of the straw 200; 230—second end of the         straw 200; 240—first coupling portion; 250—second coupling         portion;     -   400—box packing;     -   410—container; 411—first hole;     -   420—lid; 421—bulged rim;     -   430—buckle ring;     -   500—wrapped drink;     -   510—plastic cover.

DETAILED DESCRIPTION OF EMBODIMENTS

The following describes exemplary embodiments of the present application with reference to the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and should be considered as merely exemplary. Therefore, the participants of related profession should recognize that various changes and modifications can be made to the embodiments described herein without deviating from the scope and spirit of the present application. Likewise, for clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

Refer to FIGS. 1 to 11, which show a structure of an adjustment device according to an embodiment of the present application.

As shown in FIG. 1 and FIG. 2, an embodiment of the present invention provides an adjustment device 100 for adjusting a sipping or drinking angle of a straw, and the adjustment device 100 comprises a first elbow 110 and a second elbow 120. Part of the first elbow 110 can be inserted into part of the second elbow 120, or part of the second elbow 120 can be inserted into part of the first elbow 110, and then one end of the straw can be inserted into the adjustment device 100. The first elbow 110 and the second elbow 120 are slidable against each other for adjusting the sipping angle of the straw.

As shown in FIG. 3, FIG. 7 and FIG. 8, a slot 111 is provided on a wall of the first elbow 110 and extends along the length of the first elbow 110. As shown in FIG. 3 to FIG. 6, a protrusion 121 is provided at an end of the second elbow 120 inserted into the first elbow 110, and the protrusion 121 is slidable in the slot 111 along its length guided by a dent or an edge of the slot 111, so that the second elbow 120 and the first elbow 110 can be slid against each other.

Wherein, the slot 111 does not penetrate both ends of the first elbow 110 in the length of the first elbow 110, which can prevent the protrusion 121 from slipping out of the slot 111. The length of the slot 111 can limit a range in which the first elbow 110 and the second elbow 120 are slidable against each other, and a range in which the adjustment device 100 can adjust the drinking angle of the straw.

Exemplarily, the slot 111 can be provided at the bending top of the first elbow 110, and the protrusion 121 can be provided at the bending top of the second elbow 120, which is at an end of the second elbow 120 connected to the first elbow 110. The bending top is on a wall of the elbow, distinctly away from the center of the curvature of the elbow, is also known as an outer arc of the elbow.

In this embodiment of the present application, when the protrusion 121 of the second elbow 120 slides in the slot 111 guided by the dent of the slot 111, the second elbow 120 and the first elbow 110 slide against each other to adjust the curvature of the adjustment device 100.

As shown in FIG. 12, when one end of the straw 200 is inserted into the adjustment device 100, it can be seen that the straw is shaped into an L-shaped. By sliding the protrusion 121 in the slot 111, the sipping angle of the straw 200 can be adjusted. FIG. 12 shows three different sipping angles of a straw. The protrusion 121 slides back and forth in the slot 111 along the direction A. When the protrusion 121 is located at a position of the slot 111 indicated by an arrow B, the drinking angle of the straw 200 can be showed as indicated by the arrow B. When the protrusion 121 is located at a position of the slot 111 indicated by an arrow C, the drinking angle of the straw 200 can be showed as indicated by the arrow C. When the protrusion 121 is located at a position of the slot 111 indicated by an arrow D, the drinking angle of the straw 200 can be showed as indicated by the arrow D.

A first opening 112 is formed on a wall of the first elbow 110, and penetrates both ends of the first elbow 110 along the length of the first elbow 110. Exemplarily, in FIG. 7 and FIG. 8, the first opening 112 is arranged at the bending bottom of the first elbow 110, that is, at a wall along the length of the first elbow 110, close to the center of the curvature of the first elbow 110, also known as an inner arc of the first elbow 110.

Exemplarily, as shown in FIG. 8, an arc of the first opening 112 can be 120 degrees, and a wall thickness of the first elbow 110 can be 0.3 mm.

A second opening 122 is formed on a wall of the second elbow 120, and penetrates both ends of the second elbow 120 along the length of the second elbow 120. Exemplarily, in FIG. 4 and FIG. 5, the second opening 122 is arranged at the bending bottom of the second elbow 120, that is, at a wall along the length of the second elbow 120, close to the center of the curvature of the second elbow 120, also known as an inner arc of the second elbow 120.

Exemplarily, as shown in FIG. 5, an arc of the second opening 122 can be 120 degrees, and a wall thickness of the second elbow 120 can be 0.3 mm.

As shown in FIG. 3, when the second elbow 120 is inserted into the first elbow 110, the first opening 112 is aligned with the second opening 122, the walls on both sides of the first opening 112 are substantially aligned with the walls on both sides of the second opening 122.

Exemplarily, as shown in FIG. 8, an arc of the first opening 112 in the cross-section of the first elbow 110 can be 120 degrees. As shown in FIG. 5, an arc of the second opening 122 in the cross-section of the second elbow 120 can also be 120 degrees.

In some embodiments of the present application, the first elbow 110 and the second elbow 120 are not fully enclosed, and an opening is arranged on the walls of both elbows to facilitate cleaning.

In some embodiments, the first elbow 110 can be enclosed on the wall without the first opening 112, and the second elbow 120 can also be enclosed on the wall without the second opening 122.

As shown in FIG. 1A, FIG. 1B and FIG. 2, an inclined opening 113 is provided at an end of the first elbow 110 away from the second elbow 120 for piercing through a plastic cover of a wrapped drink. Wherein, an inclined direction and angle of the inclined opening 113 can be set as needed. Exemplarily, FIG. 1A and FIG. 1B show two inclined openings 113 with different inclined directions respectively. Of course, an uniform cut opening can also be provided at the end of the first elbow 110 away from the second elbow 120.

In some embodiments, a piercing part 114 is provided at an end of the first elbow 110 away from the second elbow 120. The piercing part 114 is configured sharply to pierce through the plastic cover of a wrapped drink.

As shown in FIGS. 14A-14D, before drinking, the piercing part 114 or the inclined opening 113 of the first elbow 110 of the adjustment device 100 is used to pierce through the plastic cover 510 of the wrapped drink 500. Then, one end of the straw is inserted into the wrapped drink from the punctured opening of the plastic cover, and the other end of the straw outside the wrapped drink is inserted into the adjustment device 100. Alternatively, inserting one end of the straw into the adjustment device 100 first, and the other end of the straw is inserted into the wrapped drink through the punctured opening of the plastic cover.

In some embodiments, the slot 111 penetrates from an inner wall 115 of the first elbow 110 to an outer wall 116 opposite to the inner wall 115 where the slot 111 is located. That is, both the upper and lower of the slot are openings. The protrusion 121 can penetrate through the upper and lower of the slot and be stuck in the slot 111, and can slide in the slot 111 along its length. For the connection between the second elbow 120 and the first elbow 110, there can be the following two types:

In the first example, the protrusion 121 is provided on the outer wall 124 of an end of the second elbow 120, close to the first elbow 110. In the portion where the second elbow 120 is inserted into the first elbow 110, the outer wall 124 of the second elbow 120 is attached to or close to the inner wall 115 of the first elbow 110.

In the second example, the protrusion 121 is provided on the inner wall 123 of an end of the second elbow 120, close to the first elbow 110. In the portion where the first elbow 110 is inserted into the second elbow 120, the inner wall 123 of the second elbow 120 is attached to or close to the outer wall 116 of the first elbow 110.

In some embodiments, the slot 111 is provided on the inner wall 115 of the first elbow 110, whose bottom does not penetrate the outer wall 116 of the first elbow 110. The protrusion 121 is provided on the outer wall 124 of an end of the second elbow 120 close to the first elbow 110. In the portion where the second elbow 120 is inserted into the first elbow 110, the outer wall 124 of the second elbow 120 is attached to or close to the inner wall 115 of the first elbow 110.

In some embodiments, the slot 111 is provided on the outer wall 116 of the first elbow 110, whose bottom does not penetrate the inner wall 115 of the first elbow 110. The protrusion 121 is provided on the inner wall 123 of an end of the second elbow 120 close to the first elbow 110. In the portion where the first elbow 110 is inserted into the second elbow 120, the inner wall 123 of the second elbow 120 is attached to or close to the outer wall 116 of the first elbow 110.

With reference to FIG. 2, FIG. 6 and FIG. 9, the distance between an end of the slot 111 away from the inclined opening 113 and the opening end of the the first elbow 110 away from the inclined opening 113 can be equal to the distance between the protrusion 121 and the opening end of the second elbow 120 close to the first elbow 110. Exemplarily, as shown in FIG. 6 and FIG. 9, the former distance can be 2 mm, and the latter distance can be 2 mm.

In some embodiments of the present application, the first elbow 110 and the second elbow 120 can be made of stainless steel or plastic and so on. When the stainless steel adjustment device 100 is inserted into the straw made of silicone or plastic, or the straw is inserted into the adjustment device, the suction portion of the straw can be avoided from being squeezed flat. The plastic adjustment device 100 is lighter comparatively.

As shown in FIG. 12, an embodiment of the present application provides a drinking straw component 300, comprising a straw 200 and the adjustment device 100 provided in any embodiment of the present application. One end of the straw 200 is inserted into the adjustment device 100, and then the outer wall (116, 124) of the adjustment device 100 is attached to or close to the inner wall 210 of the straw 200. In the adjustment device 100, by sliding the protrusion 121 of the second elbow 120 along the slot 111 of the first elbow 110, the second elbow 120 and the first elbow 110 can slide against each other, so that it can be used to adjust the sipping angle of the straw 200. As shown in FIG. 12, it can be seen that the sipping or drinking angle of the straw 200 changes.

Exemplarily, one end of the straw 200 is inserted into the adjustment device 100, and the inclined opening 113 or the piercing part 114 of the adjustment device 100 can be aligned towards the wrapped drink.

As shown in FIG. 10 and FIG. 11, the straw 200 can be unfolded into a shape of a long strip, and can be rolled up to form a tube. A first end 220 and a second end 230 are located at two opposite ends of the straw 200 respectively. One of the first end 220 and the second end 230 can be a tapered opening, which is easy for sucking solids in the drink, for example, the pearls in bubble tea. As shown in FIGS. 15A-15C, the first end 220 of the straw 200 is a tapered opening, and the second end 230 is a flat opening. The second end 230 can be inserted into the adjustment device 200 shown in FIG. 1A or FIG. 1B for adjusting the drinking angle of the straw 200. Both ends of the straw 200 can be flat openings. As shown in FIG. 12, the first end 220 and the second end 230 of the straw 200 are both flat openings. As shown in FIG. 10, a first coupling portion 240 and a second coupling portion 250 are respectively provided on the two opposite sides of the unfolded straw 200 and extend along the length of the straw 200. When the first coupling portion 240 and the second coupling portion 250 are correspondingly coupled, the two opposite sides of the straw 200 are tightly combined to construct the straw 200 from the unfolded long strip into a tube. When the straw 200 is unfolded, it can be in a slightly curved shape.

The first coupling portion 240 can be a buckle groove, and the second coupling portion 250 can be a buckle block which is shaped to couple with the buckle groove of the first coupling portion 240. Wherein, the shape of the buckle groove and the buckle block are various, such as a square, a polygonal diamond, or an irregular shape and so on. Exemplarily, as shown in FIG. 10, the buckle groove and the buckle block can be hook-shaped.

In some embodiments, the straw 200 can be made of food-grade silicone, and composition of the silicone comprises silver-ion elastomers and antistatic silicone elastomers.

After adding silver-ion antibacterial elastomer, the straw 200 can inhibit the growth of various Gram-positive and Gram-negative bacteria, molds and fungi.

After adding the antistatic silicone elastomer, the surface of the straw 200 will not be electrostatically charged, thereby avoiding the adhesion of dust particles.

The color of the straw 200 can be translucent, which facilitates the check-up if dust is adhered.

The straw provided in the embodiment can be reused. The walls of the two sides along the length of the unfolded straw 200 can be combined together to make the straw 200 resealable, which is easy for cleaning, unfolding and resealing.

As shown in FIG. 13, an embodiment of the present application also provides a box packing 400. The box packing 400 comprises a container 410 and a lid 420 capable of closing the opening of the container 410. The wall of the container 410 can be stretchable along the cross-sectional direction of the container 410 and is fully elastic. A bulged rim 421 is located below the lid 420 near the edge of the lid 420, and the outer diameter of the bulged rim 421 is slightly larger than the inner diameter of the opening of the container 410. When the lid 420 covers the container 410, the bulged rim 421 of the lid 420 snaps into the opening of the container 410, and the lid 420 is fixed to the opening of the container 410. When the lid 420 is lifted, a certain force is required to lift the lid 420 from the container 410.

In some embodiments of the present application, the straw 200 can be placed in the box packing 400 after being crimped, and there is still a space in the middle of the box 400 within which the adjustment device 100 can be placed.

The box packing 400 can be made of silicone, and the straw 200 and the adjustment device 100 can be placed in a silicone box packing and packaged for sale as a set.

In addition, the box packing 400 further includes a buckle ring 430 to facilitate people to carry the box packing 400 packaged with the straw component 300. A first hole 411 is provided on the edge of the opening of the container 410, and a second hole (not shown) aligned with the first hole 411 is also provided on the edge of the lid 420. When the lid 420 covers the opening of the container 410, the first hole 411 is aligned with the second hole, and the buckle ring 430 can be buckled into the first hole 411 and the second hole.

The cross section of the container 410 of the box packing 400 can be round, square shaped and so on. Exemplarily, as shown in FIG. 12, the cross section of the container 410 is round shaped.

In some embodiments of the present application, the size of the adjustment device and the straw can be adjusted to be reusable in the bubble tea, and the pearls can pass through the straw and the adjustment device.

The size of the straw can be provided as follows:

Short Straw:

For straws in length of 5 inches, diameters of 9.5 mm and 12 mm are available.

For straws in length of 6.25 inches, diameters of 7 mm, 9.5 mm and 12 mm are available.

Standard Straw:

For straws in length of 7 inches, diameters of 8 mm, 9.5 mm and 12 mm are available.

For straws in length of 8 inches, diameters of 7 mm, 8 mm, 9.5 mm and 12 mm are available.

For straws in length of 9 inches, diameters of 7 mm, 8 mm, 9.5 mm, 12 mm and 14 mm are available.

Extra Long Straw:

For straws in length of 10 inches, diameters of 7 mm, 9.5 mm and 12 mm are available.

For drinking, straws of various sizes can be provided in the following:

1. straws of 7 mm outer diameter, 2.5 mm inner diameter, 6.25 inches length:

the straw is used to drink cocktails, non-alcoholic cocktails, wine, tea and juice without any pulp.

2. coffee straws of 7 mm outer diameter, 4 mm inner diameter, with 8 inches, 9 inches and 10 inches available in length:

the coffee straw is used to drink iced coffee, tall cocktails and non-alcoholic cocktail water.

3. lip straws of 8 mm outer diameter, 4 mm inner diameter, with 7 inches, 8 inches and 9 inches available in length:

the lip straws are used for mason jar lids and some coffee cups with lids.

4. ice tea straws of 9.5 mm outer diameter, 5.5 mm inner diameter, with 6.25 inches, 7 inches, 8 inches, 9 inches and 10 inches available in length:

the iced tea straw is used to drink water, ice tea, and fruit juice. This is the most popular and universal diameter.

5. smoothie straws of 12 mm outer diameter, 7.6 mm inner diameter, with 6.25 inches, 7 inches, 8 inches, 9 inches and 10 inches available in length:

the smoothie straws are used to drink thicker milkshakes and smoothies.

6. bubble tea straws of 14 mm outer diameter, 11 mm inner diameter, with 9 inches available in length; or 13 mm outer diameter, 11 mm inner diameter, with 9 inches and 10 inches available in length:

the bubble tea straws are used to drink bubble tea.

In the description of the present specification, it should be understood that the terms of “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and other directions or positional relations are based on the positions or positional relations shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply the device or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

In addition, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.

In the present application, unless otherwise clearly specified and limited, the terms “installed”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or integrated; it can be a mechanical connection, it can be an electrical connection, it can also be communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction relationship between two components. For those basic technical participants of related profession should recognize the specific meanings of the above terms in the present application according to specific circumstances.

In the present application, unless expressly stipulated and defined otherwise, the first feature “on” or “under” the second feature may include direct contact between the first feature and the second feature, or may include that the first feature and second feature are not in direct contact but through other features between them. Moreover, the first feature “above”, “up” and “on” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than the second feature. The first feature “below”, “under” and “downward” the second feature includes the first feature directly below and diagonally below the second feature, or simply means that the level of the first feature is smaller than the second feature.

The above disclosure provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are only for illustration and are not intended to limit the application. In addition, the present application may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed.

The above are only specific implementations of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the technology can easily think of various changes or substitutions within the technical scope disclosed in the present application, these should be covered within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. 

What is claimed is:
 1. An adjustment device for a drinking straw, comprising: A first elbow; and A second elbow; wherein one of the first elbow and the second elbow is partially insertable into the other of the first elbow and the second elbow; a slot is provided on a wall of the first elbow and extends along the length of the first elbow; and a protrusion is provided at an end of the second elbow connected to the first elbow; and the protrusion is slidable in the slot of the first elbow along its length, so that the first elbow and the second elbow can be slid against each other.
 2. The adjustment device as claimed in claim 1, wherein a first opening is formed on the wall of the first elbow, and penetrates both ends of the first elbow along the length of the first elbow; and a second opening is formed on the wall of the second elbow, and penetrates both ends of the second elbow along the length of the second elbow.
 3. The adjustment device as claimed in claim 2, wherein the first opening is aligned with the second opening.
 4. The adjustment device as claimed in claim 1, wherein an inclined opening is provided at an end of the first elbow away from the second elbow.
 5. The adjustment device as claimed in claim 1, wherein a piercing part is provided at an end of the first elbow away from the second elbow, and the piercing part is configured to pierce through a cover of a wrapped drink.
 6. The adjustment device as claimed in claim 1, wherein the slot penetrates from an inner wall of the first elbow to an outer wall opposite to the inner wall.
 7. The adjustment device as claimed in claim 6, wherein the protrusion is provided on the outer wall of the second elbow, and in the portion where the second elbow is inserted into the first elbow, the outer wall of the second elbow is attached to or close to the inner wall of the first elbow.
 8. The adjustment device as claimed in claim 6, wherein the protrusion is provided on the inner wall of the second elbow, and in the portion where the first elbow is inserted into the second elbow, the inner wall of the second elbow is attached to or close to the outer wall of the first elbow.
 9. The adjustment device as claimed in claim 1, wherein the slot is located at the bending top of the first elbow, and the protrusion is located at the bending top of the second elbow.
 10. The adjustment device as claimed in claim 1, wherein both the first elbow and the second elbow are made of stainless steel or plastic.
 11. A drinking straw component, comprising; a straw; and an adjustment device claimed in claim 1; wherein one end of the straw is insertable into the adjustment device, the inner wall of the adjustment device is attached to the outer wall of the straw, and the second elbow and the first elbow of the adjustment device are slidable against each other to adjust the end of the straw to form different sipping angles.
 12. The drinking straw component as claimed in claim 11, wherein the straw can be unfolded into a strip, a first coupling portion and a second coupling portion are provided respectively on the two opposite sides of the unfolded straw and both extend along the length of the straw, and when the first coupling portion and the second coupling portion are correspondingly coupled with each other, the two opposite sides of the straw are tightly combined to construct the straw from the unfolded long strip into a tube.
 13. The drinking straw component as claimed in claim 12, wherein the first coupling portion is a buckle groove, and the second coupling portion is a buckle block whose shape is coupled with the buckle groove of the first coupling portion.
 14. The drinking straw component as claimed in claim 13, wherein the buckle groove and the buckle block are hook-shaped.
 15. The drinking straw component as claimed in claim 11, wherein the straw is made of food-grade silicone, and composition of the silicone comprises silver-ion elastomers and antistatic silicone elastomers. 